Tape Transport System Components; Check/Adjustment - Hitachi VM-8480LE Service Manual

CHAPTER 2 MECHANICAL ADJUSTMENT
JIGS AND TAPES FOR ADJUSTMENT
1. BACK TENSION METER « ALIGNMENT TAPE « MASTER PLANE
No, 7099004 NTSC(MH-1) : No, 7099046 No. 7099279
PAL(MH-2) : No. 7099052
SECAM (MH-4) : No. 7099053
4, TORQUE GAUGE - TORQUE GAUGE ADAPTER | 6. REEL DISK HEIGHT JIG . HEXAGONAL WRENCH
No, 7099039 No. 7099204 No. 7099038 0.9mm : No. 7099202
SS
1. TAPE TRANSPORT SYSTEM COMPONENTS CHECK/
ADJUSTMENT
The tape transport system is the path from the
supply reel disk to the take-up reel disk via the
video heads, The tape treansport components,
especially the components which come into direct
contact with the tape, should be kept clean
without damage, dust and oil, etc. adhering to
the contact surfaces. The tape transport system
is adjusted before shipment from the factory, so MASTER
when any transport compoents are replaced, the PLANE
transport system is stabilized by correctly
adjusting the new components, REEL DISK
1-1. Reel Disk Height Adjustment (Fig. 1-1) HEIGHT JIG
1) Place the master plane on the cassette holder
and lower the holder.
2) Place a reel disk height jig on the master
plane and fit it to the reel disk.
3) Check that the top of the reel disk is
positioned between sections A and B of the
teel disk height jig.
4) When the top of the reel disk is not CASSETTE WASHER CHASSIS.
positioned between section A and B, adjust the HOLDER
number of the spacers (2 types: 0.25mm and
0.5mm thick) at the bottom of the reel disk.
Fig. 1-1
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